f/coeax-dividend.csv at bb8e39605ef99b652f313b9fbf152f26d568e613

gmp/f

Greg Pomerantz bb8e39605e Event-history protection: backup dir, empty-download fallback, docs

Yahoo's 2026 event-feed change (capitalGain events dropped for some
funds; no events at all for terminated tickers) can wipe good event
history on re-download. Defense in depth:

- overrides/event-backup/: last-known-good copy of every dividend/
  capitalGain file (8,192 files, 58 MB); refresh with
  scripts/backup_events.py after each dump update
- data.py event_file(): frozen > data-root (while populated) > backup;
  used by panel reads, verify_official, and the double-listing scanner
- README: capital-gain files are mutual-fund-only in this dump; Yahoo
  has no LT/ST split (tax.py taxes capg at lt_rate; the per-fund split
  would come from fund-company annual tax statements or commercial feeds)
- tests: exact Timestamp .loc keys (pandas 3.x string matching returns a
  Series on large DatetimeIndex)

2026-08-31 21:59:25 -04:00

5.6 KiB

Raw Blame History

1	Date	Dividends
2	2011-02-28	0.036000
3	2012-06-29	0.029000
4	2016-08-31	0.027000
5	2005-12-30	0.038000
6	2012-07-31	0.030000
7	2012-12-31	0.029000
8	2018-02-28	0.023000
9	2025-11-28	0.021000
10	2007-10-31	0.037000
11	2009-04-30	0.037000
12	2015-09-30	0.028000
13	2017-07-31	0.027000
14	2019-04-30	0.025000
15	2003-10-31	0.039000
16	2009-09-30	0.036000
17	2019-01-31	0.026000
18	2020-12-31	0.020000
19	2022-02-28	0.016000
20	2022-05-31	0.018000
21	2025-07-31	0.023000
22	2011-09-30	0.033000
23	2003-12-31	0.039000
24	2005-03-31	0.038000
25	2005-05-31	0.037000
26	2005-06-30	0.041000
27	2018-07-31	0.026000
28	2021-12-31	0.019000
29	2022-04-29	0.017000
30	2023-06-30	0.020000
31	2009-10-30	0.037000
32	2013-02-28	0.026000
33	2024-07-31	0.021000
34	2006-08-31	0.038000
35	2010-08-31	0.034000
36	2014-09-30	0.029000
37	2025-06-30	0.021000
38	2003-09-30	0.039000
39	2008-11-28	0.038000
40	2012-03-30	0.031000
41	2019-08-30	0.025000
42	2005-08-31	0.038000
43	2018-12-31	0.026000
44	2019-05-31	0.025000
45	2019-09-30	0.023000
46	2020-04-30	0.022000
47	2021-05-28	0.020000
48	2026-02-27	0.018000
49	2026-03-31	0.023000
50	2006-03-31	0.038000
51	2007-03-30	0.038000
52	2013-06-28	0.027000
53	2023-07-31	0.021000
54	2010-04-30	0.041000
55	2015-05-29	0.029000
56	2016-12-30	0.029000
57	2017-02-28	0.024000
58	2017-11-30	0.025000
59	2021-07-30	0.019000
60	2021-08-31	0.019000
61	2023-02-28	0.016000
62	2004-08-31	0.038000
63	2013-05-31	0.028000
64	2013-08-30	0.029000
65	2017-12-29	0.026000
66	2018-10-31	0.027000
67	2023-01-31	0.019000
68	2023-04-28	0.019000
69	2009-05-29	0.036000
70	2011-08-31	0.033000
71	2012-09-28	0.029000
72	2014-01-31	0.030000
73	2020-02-28	0.021000
74	2020-05-29	0.022000
75	2008-03-31	0.039000
76	2008-08-29	0.038000
77	2013-07-31	0.029000
78	2014-12-31	0.027000
79	2016-06-30	0.027000
80	2020-09-30	0.019000
81	2008-07-31	0.038000
82	2010-11-30	0.034000
83	2011-03-31	0.034000
84	2016-05-31	0.028000
85	2022-01-31	0.019000
86	2023-03-31	0.019000
87	2024-08-30	0.021000
88	2025-08-29	0.022000
89	2026-07-31	0.025000
90	2004-06-30	0.038000
91	2009-11-30	0.036000
92	2011-10-31	0.033000
93	2012-11-30	0.028000
94	2014-07-31	0.029000
95	2016-07-29	0.027000
96	2007-08-31	0.038000
97	2008-04-30	0.038000
98	2012-02-29	0.029000
99	2013-03-28	0.029000
100	2018-01-31	0.027000
101	2014-11-28	0.028000
102	2015-02-27	0.026000
103	2022-07-29	0.018000
104	2024-09-30	0.020000
105	2004-02-27	0.038000
106	2005-01-31	0.037000
107	2007-02-28	0.039000
108	2015-10-30	0.028000
109	2018-11-30	0.050000
110	2024-12-31	0.022000
111	2005-09-30	0.038000
112	2006-07-31	0.038000
113	2008-10-31	0.039000
114	2016-03-31	0.028000
115	2022-09-30	0.018000
116	2018-05-31	0.027000
117	2019-06-28	0.024000
118	2025-10-31	0.022000
119	2003-03-31	0.040000
120	2003-05-30	0.038000
121	2004-05-28	0.038000
122	2015-11-30	0.027000
123	2012-08-31	0.029000
124	2015-06-30	0.028000
125	2022-08-31	0.018000
126	2026-06-30	0.023000
127	2004-12-17	0.036000
128	2013-01-31	0.029000
129	2014-02-28	0.027000
130	2017-03-31	0.027000
131	2020-07-31	0.020000
132	2005-10-31	0.038000
133	2006-06-30	0.038000
134	2020-10-30	0.020000
135	2025-01-31	0.022000
136	2026-01-30	0.023000
137	2008-01-31	0.039000
138	2017-05-31	0.026000
139	2013-12-31	0.030000
140	2014-08-29	0.029000
141	2015-03-31	0.029000
142	2005-07-29	0.038000
143	2006-10-31	0.038000
144	2012-05-31	0.031000
145	2019-12-31	0.023000
146	2025-05-30	0.023000
147	2016-01-29	0.028000
148	2020-01-31	0.023000
149	2020-11-30	0.019000
150	2021-10-29	0.018000
151	2016-09-30	0.025000
152	2022-12-30	0.020000
153	2011-11-30	0.031000
154	2005-02-28	0.039000
155	2013-04-30	0.028000
156	2021-03-31	0.019000
157	2003-07-31	0.039000
158	2003-08-29	0.039000
159	2023-09-29	0.019000
160	2004-09-30	0.038000
161	2010-09-30	0.034000
162	2013-09-30	0.028000
163	2021-11-30	0.018000
164	2003-02-28	0.042000
165	2006-09-29	0.038000
166	2006-11-30	0.038000
167	2014-03-31	0.031000
168	2015-04-30	0.028000
169	2021-04-30	0.019000
170	2004-04-30	0.038000
171	2015-01-30	0.029000
172	2016-02-29	0.026000
173	2018-04-30	0.026000
174	2020-08-31	0.020000
175	2024-11-29	0.020000
176	2004-10-29	0.038000
177	2011-06-30	0.032000
178	2003-04-30	0.038000
179	2009-06-30	0.037000
180	2010-01-29	0.034000
181	2010-07-30	0.033000
182	2010-10-29	0.033000
183	2011-07-29	0.033000
184	2015-08-31	0.029000
185	2022-06-30	0.017000
186	2014-04-30	0.030000
187	2018-09-28	0.025000
188	2023-10-31	0.021000
189	2010-03-31	0.035000
190	2004-11-30	0.038000
191	2008-09-30	0.039000
192	2023-11-30	0.020000
193	2006-04-28	0.038000
194	2007-12-31	0.039000
195	2010-05-28	0.034000
196	2011-12-30	0.033000
197	2017-01-31	0.027000
198	2025-03-31	0.022000
199	2016-04-29	0.027000
200	2023-08-31	0.020000
201	2024-01-31	0.021000
202	2007-11-30	0.039000
203	2006-05-31	0.038000
204	2013-11-29	0.028000
205	2018-06-29	0.025000
206	2024-03-28	0.020000
207	2025-02-28	0.019000
208	2025-04-30	0.021000
209	2007-01-31	0.038000
210	2007-09-28	0.038000
211	2008-05-30	0.038000
212	2009-02-27	0.038000
213	2019-07-31	0.024000
214	2020-12-02	0.034000
215	2021-09-30	0.018000
216	2004-01-30	0.038000
217	2005-11-30	0.038000
218	2011-05-31	0.034000
219	2012-04-30	0.030000
220	2025-12-31	0.022000
221	2012-10-31	0.029000
222	2013-10-31	0.029000
223	2016-10-31	0.027000
224	2019-11-29	0.023000
225	2023-05-31	0.020000
226	2024-02-29	0.019000
227	2020-03-31	0.024000
228	2021-01-29	0.020000
229	2024-04-30	0.020000
230	2004-07-30	0.039000
231	2004-12-31	0.038000
232	2009-07-31	0.036000
233	2009-08-31	0.036000
234	2017-04-28	0.026000
235	2019-03-29	0.026000
236	2024-10-31	0.021000
237	2003-01-31	0.041000
238	2015-12-31	0.028000
239	2017-10-31	0.026000
240	2018-03-29	0.026000
241	2024-06-28	0.020000
242	2008-06-30	0.038000
243	2009-12-31	0.036000
244	2020-06-30	0.020000
245	2021-02-26	0.018000
246	2022-03-31	0.018000
247	2007-07-31	0.038000
248	2010-12-13	0.021000
249	2014-06-30	0.028000
250	2018-08-31	0.026000
251	2021-06-30	0.018000
252	2025-09-30	0.022000
253	2007-04-30	0.038000
254	2007-05-31	0.037000
255	2007-06-29	0.037000
256	2010-12-31	0.034000
257	2016-11-30	0.026000
258	2006-01-31	0.038000
259	2006-02-28	0.039000
260	2009-01-30	0.038000
261	2015-07-31	0.029000
262	2022-11-30	0.018000
263	2024-05-31	0.021000
264	2008-02-29	0.038000
265	2008-12-31	0.038000
266	2009-03-31	0.038000
267	2011-04-29	0.035000
268	2014-10-31	0.029000
269	2017-06-30	0.025000
270	2019-02-28	0.023000
271	2019-10-31	0.025000
272	2003-12-19	0.143000
273	2005-04-29	0.038000
274	2017-09-29	0.025000
275	2003-11-28	0.040000
276	2004-03-31	0.038000
277	2011-01-31	0.035000
278	2023-12-29	0.021000
279	2026-05-29	0.023000
280	2010-02-26	0.034000
281	2010-06-30	0.034000
282	2012-01-31	0.031000
283	2019-12-03	0.016000
284	2022-10-31	0.019000
285	2026-04-30	0.022000
286	2003-06-30	0.039000
287	2006-12-29	0.038000
288	2014-05-30	0.030000
289	2017-08-31	0.027000

5.6 KiB Raw Blame History

5.6 KiB

Raw Blame History